5-22
Motor, Mechanical Axis System, Measuring Systems
MPH-02, MPB-02, MPD-02
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
lq
Md
100
pmf
50
pmf
Md
t
Dg5005f1.fh7
100
pmf
50
pmf
Md:
torque at the motor shaft
Iq:
torque-generating content of the motor current
t:
time
Fig. 5-10:
Influence of the premagnetization factor on the torque
Notes on Commissioning
In the case of Rexroth motors without encoder data memory, the motor-
specific parameter values made available, such as
•
motor
parameters
•
parameters of the measuring system
•
parameters of the motor holding brake
•
temperature sensor parameters
can either be input manually by means of a list (e.g. via the control
terminal) or loaded via the "DriveTop" commissioning tool from a data
base.
Setting of P-0-0532 depending on the application:
Application
Value of
P-0-0532 in %
Effect
servo drive
100
torque generation free of delay in the case
of acceleration or sudden load variation
main drive
50
less power dissipation in no-load operation,
noise level reduced
Fig. 5-11:
Recommended setting for parameter P-0-0532
With values between 50% and 100% it is possible to obtain a compromise
between the mentioned effects!
It is therefore necessary to make sure you obtain the desired results for
processing or acceleration/deceleration procedures after the
premagnetization factor has been reduced!
Note:
The selection lists for motor/controller combinations with
Rexroth asynchronous motors (2AD, ADF, 1MB, MAD, MAF),
published by Rexroth, refer to a premagnetization of 100%.
With lower values you have to expect deviation from these
data!
Parameter Values Made
Available
Setting the Premagnetization
Factor
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com
